He did lose his job. Apparently he was sick of his job or something like that and he decided to be a dick and started to just throw every fragile package as to make sure it breaks. I remember reading about that somewhere.

That's a very thin bush, the box would probably fall right through, and yes he did do something wrong. I remember when this was on the news, the owner said the monitor did have some damage to it. Even if it didn't have any damage, he did something wrong. You don't throw someone else's property because there is always the possibility of something like this happening.